Pipe-joint.



No. 807,768. PATENTED DEC. 19, 1905. S. OTIS.

PIPE JOINT.

APPLmATIoN FILED mime. 1904.

JMJ/67%@ 7^. 36627166? 0505,

UNITED sTATEs PATENT oEEicE.l

SPENCER O'IIS, OF CHICAGO, ILLINOIS.

PIPE-JOINT.

Specification of Letters Patent.

Patented Dec. 19, 1905.

Application filed April 29, 1904. Serial No. 205,497.

T a/ZZ whom it may concern:

Be it known that I, SPENCER Oris, a citizenY form an articulate jointbetween a section of hose or pipe and any other pipe or device to whichit may be desirable to connect it.

The principal object of the invention is to Aprovide a simple,economical, and eiiicient articulate joint for air-pipes, hose, orsimilar devices.

A further object of the invention is to provide, in an articulate jointfor air-pipes containing fluid under pressure, suitable means forpreventing the escape of such fluid, while permitting the movement ofthe parts joined thereto.

A further object of the invention is to provide, in an articulate jointfor air-pipe or hose containing fluid under pressure, a socket por--tween the ring and movable sleeve.

A further object of the invention is to provide, in an articulate jointhaving ring mechanism removably mounted upon a movable sleeve andadapted to be held in engagement with the socket portion by the force ofHuid under pressure, suitable means for removably holding the ring uponthe sleeve and forming an air-tight connection between it and thesleeve.

Other and further objects of the invention will appear from anexamination of the drawings and the following description and claims.

rIhe invention consists in the features, combinations, and details ofconstruction hereinafter described and claimed.

Y In the accompanying drawings, Figure l shows an air-pipe couplingconnected with an air-pipe by means of a pair of my improved joints, andFig. 2 is a longitudinal sectional elevation taken on line Qof Fig. 1looking in the direction of the arrow.

In the art to which this invention relates it is very desirable thatmeans be provided whereby a line of air pipe or hose may be renderedflexible by providing one or more articulate joints adapted to form anair-tight connection between the parts of such hose or air-pipeconnected thereby or between one or more similar joints which it may befound necessary or convenient to use together in order to afford thedesired flexibility. Itis particularly desirable in connection with airpipes or hose used in air-brake systems for railwaycars to provide oneor more articulate joints adapted to afford the desired flexibility inthe line of air pipe or hose and prevent the escape of the fluid, whichis of necessity maintained under high pressure. It is also desirable toprovide means whereby the relatively movable parts of the joint orjoints will be held in air-tight engagement with each other by means ofthe iiuid under pressure. j

In constructing a joint in accordance with my improvements I provide ashell or socket portion a, formed, preferably, of wrought metal spuninto parti-spherical form, so that its inner surface b is concave orcurved in all directions, gradually narrowing toward the opening ormouth c of the socket. A neck portion Z of the socket is mounted inthreaded engagement with the shell portion above described and isprovided with screw-threads, by means of which it may be connected withthe hose, air-pipe, or another steam-joint, as desired, a suitablegasket f being mounted intermediate the neck and shell portions of thesocket to form an air-tight connection therebetween. A movable sleeve gis provided, having an annular shoulder/1I at one end, which is insertedinto the parti spherical socket above described, such sleeve beingprovided with screw-threads al upon its outer end, by means of which itis adapted to be connected with another piece of hose, pipe, or similarjoint, and a ring j, made, preferably, of soft metal, such as Babbitt orlead, and having its outer annular surface parti spherical and shaped tothe same curve as that of the inner surface or parti-spherical endportion of the socket, is mounted inside the socket upon the shoulderedend of the movable sleeve above described. This ring fits snugly butslidably upon the sleeve and is provided with'beveled IIO side surfaces/r and Z, one of which engages the correspondingly-beveled side surfaceof the shoulder /t of the sleeve already described. A ring or collar mis slidably mounted upon this sleeve on the opposite side of suchpartispherical ring and provided with a beveled surface adjacent to thebeveled surface of such parti -spherical ring. In order to provide meansfor yieldingly holding this ring or collar m in engagement with theparti-spherical ring and for holding such ring in engagement with theannular end shoulder of the sleeve, so as to form an air-tightconnection between it and the sleeve, an end collar n is mounted uponthe outwardly-extending portion of the sleeve to form a fixed annularshoulder, and a spiral spring o is mounted intermediate such collar andthe ring m, so as to hold the latter yieldingly in engagement with thepartispherical ring and form a yielding connection between the ringmechanism with the sleeve. The neck portion of the socket is expanded atthe end where it is connected with the shell portion, so as to form ahead or base p, which is hollowed out to form a parti-spherical orconcave surface g adjacent to the parti-spherical ring and which isadapted to prevent such ring from receding too far from the mouth of thesocket.

By the above arrangement it will be readily seen that theparti-spherical ring is held tightly but movably in position against theinner walls of the shell by means of the fluidpressure and that thebeveled sides of such ring are held in yielding air-tight engagementwith the annular end shoulder of the sleeve on one side and with thecorrespondingly-beveled ring on the other by means of the spring uponthe sleeve, so that while the ring mechanism is removable from thesleeve and can be readily replaced when worn an air-tight connection isformed between such relatively movable parts.

I claim- A l. In a joint of the class described, the combination of ashell formingasocket, a movable sleeve extending into such socket, anannular shoulder upon such sleeve, and ring mechanism mounted in thesocket encircling the sleeve and movable with relation to both of thesleeve and socket and having one side in engagement with such collar andan outer surface portion in engagement with the wall of the socket onthe side of the ring opposite that which engages the annular shoulder'of the sleeve, and means for yieldingly holding such ring mechanism andsleeve in position with relation to each other, substantially asdescribed.

2. Ina joint of the class described, the combination of a shell forminga socket, a movable sleeve extending into such socket an annularshoulder upon such sleeve, and ring mechanism mounted in engagement withsuch annular shoulder and having an outer surface portion in slidingengagement with the socket on the side of the ring opposite that whichis in engagement with the annular shoulder of the sleeve, substantiallyas described.

3. In a joint of the class described, the combination of a shell forminga socket having a concave inner surface, a ring having a convex outerperipheral surface mounted in sliding engagement with the concavesurface of the socket and having beveled side surfaces, a sleeveextending through such ring, and ring mechanism mounted upon such sleevein yielding engagement with the beveled side surface of suchrstmentioned ring and yieldingly connected with the sleeve,substantially as described.

4. In a joint of the class described, the cornbination of a shellforming a socket having an inner concave parti-spherical surface, a ringmovably mounted in such socket having a convex peripheral surface insliding engagement with the inner concave surface of the socket portionand having beveled side surfaces, a sleeve extending through such ring,ring mechanism slidably mounted upon such sleeve in engagement with thebeveled side surface portion of such ring, and means 'for holding suchrings in yielding engagement with each other, substantially asdescribed.

5. In a joint of the class described, the combination of a shell forminga socket having an inner concave surface, a ring movably mounted in suchsocket having a convex surface in sliding engagement with the innerconcave surface of the socket portion and having beveled side surfaces,a sleeve extending through such ring, ring mechanism slidably mountedupon such sleeve in engagement with the beveled side surface portion ofsuch ring, and spring mechanism yieldingly connecting such ringmechanism and sleeve, substantially as described.

6. In a joint of the class described, the combination of a shell forminga socket having an inner concave surface portion, a ring movably mountedin such socket having a convex outer peripheral surface in slidingengagement with the inner concave surface of the socket portion andhaving beveled side surfaces, a sleeve extending through such ring, anannular shoulder upon such sleeve in engagement with one side of suchring, and a ring mounted upon such sleeve in engagement with theopposite side of such beveled ring, substantially as described.

7. In a'joint of the class described, the combination of a shell forminga socket having an inner concave surface portion, a ring movably mountedin such socket having a convex outer peripheral surface in slidingengagement with the inner concave surface of the socket portion andhaving beveled side surfaces, a sleeve extending through such ring, anannular shoulder upon such sleeve in engagement with one side of suchring, a ring mounted upon such IOO sleeve in engagement With theopposite side of such beveled ring having a convex surface in engagementwith the adjacent beveled side surface of such ring, and springmechanism mounted upon such sleeve and in engagement With such beveledring, substantially as described.

8. In a joint of the class described, the combination of a shell forminga socket adapted to contain iiuid under pressure, a sleeve extendinginto such socket provided With an annular shoulder on its inner end, anda ring having a convex outer peripheral surface in engagement with theinner wall of the socket and having a side surface on its opposite sidein engagement with the annular shoulder of the sleeve, such annularshoulder and ring being exposed to the action of the uid under pressurecontained in the socket portion whereby such ring is held in air-tightengagement with the socket portion by means of the pressure of thefluid, substantially as described.

9. In a joint of the class described, the combination of a shell forminga socketV adapted to contain fluid under pressurefa sleeve extendinginto such socket provided With an annular shoulder on its inner end, aring having a convex outer peripheral surface in engagement with theinner Wall of the socket and having' a side surface on its opposite sidein engagement with the annular shoulder of the sleeve, such annular'shoulder and ring being exposed to the action of the fluid underpressure contained in the socket portion whereby such ring is held inair-tight engagement With the socket portion by means of the pressure ofthe uid, and spring mechanism for holding such ring in engagement withthe annular shoulder on the sleeve for forming an air-tight connectionbetween such ring and sleeve, substantially as described.

10. In a joint of the class described, the combination of a shellforming a socket, a sleeve extending into such socket provided with anannular shoulder on its inner end, a ring mounted upon such sleeve inengagement with such annular shoulder and having a convex outerperipheral surface in engagement With the Wall of the socket on the sideopposite that which engages the shoulder of the sleeve, and means forholding such ring in engagement with the annular shoulder of the sleeve,substantially as described.

11. In a jointof the class described, the combination of a shell forminga socket, a sleeve `extendinginto such socket provided With an annularshoulder on its inner end, a ring mounted upon such sleeve in engagementWith such annular shoulder and having a convex outer peripheral surfacein engagement With the Wall of the socket, and spring mechanism mountedon such sleeve forming a yielding connection between the ring andsleeve, substantially as described.

1Q. In a joint of the class described, the combination of a shell formedof spun wrought metal, a ring of soft metal having a convex outerperipheral surface in sliding engagement with the inner surface of suchsocket, and a movable sleeve extending into such socket and providedWith an annular shoulder in engagement with such ring, substantially asdescribed.

13. In a joint of the class described, the combination of a shell formedof spun Wrought metal, a ring of Babbitt metal having a convex outerperipheral surface in sliding engagement with the inner surface of suchsocket, a movable sleeve extending into such socket and provided With anannular shoulder in engagement with such ring, and means for holdingsuch ring in engagement With the sleeve, substantially as described.

SPENCER O'IIS.

Witnesses:

HARRY IRWIN CROMER, ANNIE C. COURTENAY.

